Problema Solution
Mike has 19 coins (nickles, dimes, and quarters) in his piggy bank with a total value of $2.35. There are 2 more dimes than nickles. How many of each type of coin does Mike have?
Answer provided by our tutors
nickle:x
dime: x+2
quarter: 19-x-(x+2)
So
0.05x + 0.1(x+2)+0.25(19-x-x-2)=2.35
So
x= 6
So
nickle: 6
dime: 8
quarter: 5